I spent two weeks researching this dryer and collected a ton of info. I watched you tube videos and put all that information into thinking it was the motor overheating. I took the dryer apart and found the front bearing slides were worn in half on the left side, it had rubbed a groove on the upper support bearing. I replaced all four slides the upper support bearing, The rear bearing(kit) and both the thermostat and thermistor on the outlet just past the blower. While I was in there i replaced the belt and idler pulley. Since it was a ten year old dryer i gave her tune-up while i had her apart. From what I learned from many others there were two suspects, 1 worn bearing causing friction and overheating the motor or 2 the thermistor. I t works like new now and it wasn't difficult, a little time consuming since it was my first dryer repair. I forgot to mention the felt trap duct was also replaced. Thermostat tested good with meter, old thermistor showed less resistance than the new one. I kept the thermostat any ways as part of the tune-up.